I am a non-European citizen and my husband is of Bulgarian National. He is working in a company in UK and I am here on EEA family permit. I applied for Residence card on 6th January 2016 and on 20th January 2016 I received the CoA stating "at this stage we are unable to confirm your right to work…..".

1. I already started searching for job and have applied in few companies. But since CoA states that they cannot confirm my right to work..can I still continue with my job search or should I wait for HO decision on my residence card? (My interpretation of "at this stage we are unable to confirm your right to work….." is that they cannot confirm my right to work but also they have not denied it. Please let me know if my understanding is wrong)
2.I understand that EEA FP should be enough for Employers to offer job but now my Passport is with the HO and I have only the CoA which doesn't confirm my right to work. If in case I do get a job offer can I request back my passport from HO just to show my employer the EEA FP?
2. My EEA FP expires on 8th March 2016 (i,e in next 35 days) and I understand that it takes approximately 6 months for RC. So can I continue to stay in UK even after the EEA FP expires?
3. In the worst case scenario if I stay in UK even after my EEA FP expires and my residence card application gets denied then what do I do? If then I try to leave UK will the UK Border police create problems?
Any advice would be appreciated.
Thank you in advance.