Is  An Acceptable Form Of 逗 In Sichuanese?
According to a post on the zDic Forum for that character from 2010, it is a topolect character (despite its rather mysterious pedigree in the Kangxi Dictionary). 

However, I couldn't find it in the 《成都方言詞典》 Chengdu Dialect Dictionary, nor a lexeme corresponding to it. On consulting the 《四川方言詞典》 Sichuan Dialect Dictionary from 1986, I only find it represented with the character 逗 dou1 (which is also repeated as a 多音字 for dou4).

I posit that it may appear in certain 川剧 libretti, but otherwise it may be that the author simply went through Kangxi to look up rare characters of that pronunciation to use. Nonetheless, the semantic shift from 輕言 to 逗引 is not inconceivable.