Doesn't sound like submissive peeing…when a dog is confronted with a new or sometimes mildly exciting situation or person and pees because of that. Submissive peeing is very difficult to overcome.
Without more information, yours sounds like attitude peeing and not very accidental. I had a B owner tell me her bitch was doing this...only she was peeing on the owner's bed. She used a very unconventional method to stop her from doing this that if I told you what she did, some here would fall over from laughter, others from horror. I will just suffice to say the dog was not hurt and she never peed in the house again.
The correction of attitude peeing can be done, but my method would be to first stop rewarding her for her behavior. I would put her in her crate immediately after peeing, wait for about a half hour then take her outside. She would learn that peeing to get attention only gets her less attention.
However, first have her checked for a UTI or anything else medically that might cause incontinence.