Just because they interview someone doesn't mean they have probable cause, which is the legal standard required to obtain a search warrant or arrest warrant. Police can interview anyone they believe might have useful information. Of course, anyone can refuse to speak to the police. If the police are asking questions and have reason to believe that the person's answer might incriminate them, then they are required to read the person their Miranda rights.
If the authorities believed it might be helpful to search a person's car or house, they might first ask permission. This happens all the time with traffic stops---the police ask, "Do you mind if I look in the trunk?" Etc. etc. It is not uncommon at all for guilty perps with drugs in the trunk to give permission for the police to search. It also should be noted that the standard required to search a car is lower than to search a house.
Lol. Trust me, I know by questioning someone doesn't have to be arrested. I obviously did not ask my question correctly. I should have rephrased the question better. I meant more if the search warrants were executed, is the judge obligated by Texas Law to even acknowledge they are there, but have been sealed?