Adrian Grenier was all smiles taking a stroll through LA with his girlfriend Isabel Lucas by his side yesterday. Looks like Isabel is feeling fine after riding shotgun during her Transformers 2 costar Shia LaBeouf's scary car accident this weekend. Adrian assured us that all is fine with his girl Isabel, saying, "She's okay, we're good. This is not the time for an interview." Shia seems to be in enough hot water as is, but maybe this means he won't have to answer to an angry Adrian in addition to the police.