The horn blows if you touch with just a finger tip and no pressure. I have heard that could be due to airbag problem. I had it in for another issue and they checked the horn off as working fine........it continued to do the same thing. I was told it could be caused by a problem with airbag and could cause unexpected deployment Is this true
Can a sensitive horn (blows if you barely brush steering wheel) be due to airbag on 2010 Acura RL
Find another shop. Do you realize the liabilty that the shop took on telling you this.